Dumping-car for sticky materials.



M. ORENSTEIN. DUMPING CAR FOR STICKY MATERIALS.

Patented Oct 20,1908.

APPLICATION IILED'MAY 18, 1908.

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ms Jlf'rrr y M. ORENSTEIN. DUMPING CAR FOR STICKY MATERIALS.

I APPLICATION FILED HAY 18,1908.- 901,643

Patented Oct; 20, 1908.

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UNITED STATES PATENT OFFICE.

MAX ORENSTEIN, OF BERLIN, GERMANY.

DUMPING-GAR 203 Specification of Letters Patent.

STICKY MATERIALS.

Patented Oct. 20, 190s.

Application filed May 1a, 1908. Serial No. 1,213,480.

citizen of the, German Empire, residing' at Berlin, in the Kingdom of Prussia, German Empire, have invented new and useful Improvements in Dumpin Cars for Sticky Materials, of which the ollowing is a specification.

As is well known, it is often exceedingly ditficult to dump moist loam, clay, or like sticky material from a car, owing to its adhering to the walls of the car-body. In such cases the tilting of the body being insuflicient to dislodge the material, the latter mustbe shoveled out.

My invent-ion relates to improvements in dumping-cars, whereby such sticky materials can be readily and completely dumped on the car-body being tilted.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a perspective view of a boxbodied dumpingcar provided with my new improvement. Fig. 2 shows the body tilted, in its end position, with the inner tray in the course of sliding down. Fig. 3 is a similar view showin the tray in pendent position, after dumplng. Fig. 4 is a perspective View of the trough-shaped body of a dumping-car in erect position. Fig. 5 shows the same tilted, in the end position, in the moment of dumping. Fig. 6 is alike view showing the pendent tray, in the after-' dumping position.

Referring to Figs. l-3, the box-shaped body a of the dumping-car is provided with a sliding tray fitting snugly into it. In the particular constructional form of the invention illustrated, the tray comprises a base d of about half the width of the bed a of the body a, a back-Wall b hinged to the base (I at 71 and end-walls c rigidly secured to. the back 5. This latter is furnished with trunnions c, which rest onthe top of the endwalls of the body a.

3 ()n the body a being tilted, shown 111 F ig.2,"the entire tray with the load to be dumped will naturally slide within the body I a, the trunnions gliding along the tops of the end-walls .of the body a on which they rest; Durin this movement there is thus nomotion o the material relatively to the walls of the tray, so that the amount of friction and adhesion to be overcome 'is very greatly reduced.

During the downward sliding motion of body (2, whereby the top of the wall I) will be arrested. The material on the tray, however, will continue to descend, by reason of theinclination of the body a and also owing to its inertia; and on account of its adhesion to the d, and of the increased friction due to its own weight, the material will drag the base at with it. The tray will thus be opened out, theback b swinging on'the trunn-ions c and the base at turning on the hinges substantially perpendicular position. The

material having thus no longer any hold will be -completely dumped from the car. Figs. 4-6 illustrate the application of, the

shaped body 9. a In the particular construct ive form here illustrated the car-body consists of a single plate, bent so as to present -flat front and back walls, located at rightangles to each other, and connected by a curved bed or bottom portion. Into this body there fits a tray, consisting of a baseplated, and a back It hinged thereto at 11, and presenting rigid end-walls In, which latter, however, may be dispensed with. I The back it is here shown as being aflat rectangular plate of substantially the same area as the back-wall of the body 9. The base 2} is curve as the bottomof the body 9. The back It of the tray presents trunnions Z, which encured to the top of the body g. The slots walls of the body g.

. When the body 9 is tilted, the tray with tion of the back h, but not of the material in the tray, will be arrested. The material itselfwill continue to slide down, and owing to its adherence to the base 2', and to the init will dragxthe base 1? along. Since the top entire back it will swing on the latter and the parts I), will'finally come into the position shown in Fig. 6, the base i turning on the b so that the parts b,.d finally assume a -70 a e inthe slots m of the uide-bars a se-' m run parallel with the respective opposite ends of the slots m (Fig. 5), the sliding mo-..

of the back It is held by the trunnions Z, the

the tray (1, the trunnions a will strike the tops f projecting from the end-walls of the invention to a dumping-car having a troughofsubstant-ially the same length, breadth and the material bei'ngdumped will slide within a creased amount of friction due to its weight, 1

tray fitting the latter and sliding therein on tipping of the body; and means onthe body for arresting the top part oft-he tray after it has slid for a certain distance, whereby the tray is caused to swing about its top and dump the material in it, substantially as described.

2. In a dumping-car, a tilting body; a tray fitting therein and consisting of a base, and a back hinged thereto, said tray sliding in the body on tipping of the latter; and means on said body for arresting. the top part of the tray-back after it has slid for a certain distance, whereby the'tray-back swings about its top, while the base flaps back on its hinges, whence thematerial contained in the tray is dumped, substantially as described.

3. In a dumping-car, a tilting bod a tray fittin therein and consisting of a ase, and a bac hinged thereto. and presenting trunnions, said tray sliding in the body 011 tipping of the latter; and means on said body for engaging said trunnions and arresting the top part of the tray-back after it has slid for a certain distance, whereby the'tray-back swings on said trunnions,

while the base flaps back on its hinges, whence the material contained in the tray is dumped, substantially as described.

4. In a dumping-car, a tilting body; a

tray fitting therein and consisting of a base, I and a back, presentlng Ilgld end walls,-.

hinged thereto, said tray sliding in the body on tipping of the latter; and means on said body for arresting the top part of the trayback after it has slid for a certain distance, whereby the tray-back swings about two subscribing witnesses.

1 MAX ORENSTEIN.

Witnesses WOLDEMAR HAUPT, HENRY HASPER. 

